<template>
    <div class="SonB">
      我是儿子B
    </div>
  </template>
  
  <script>
  export default {
  
  }
  </script>
  
  <style scoped>
  .SonB{
    border: 3px solid blue;
    margin: 10px;
    border-radius: 6px;
    height: 200px;
  }
  </style>